Filing machine



G. KORlN EK FILING MACHINE April 25, 195o 2 Sheets-$heet 1 Filed May 6, 1946 INVENTOR. 6.05 7,4 V /fo/Q/A/f/f G. KCRINEK FILING MACHINE pril 25, 1950 2 sheets-sheet 2 Filed May 6, 1946 5 MM H TN M mm 4m O WK ww V 5 A W V U GY Du Patented pr. 25, 1950 Yirai) STATES PATENT OFFICE 4FILING MACHINE A'Gusta-v. Koiek, Detroit. Mich.

ApplicationgMay i6, 1946, serial No. 667,5@

(o1. zei-76) Claims. 'l

This invention relates generally to machine tools of the type `having a tool reciprocable through an opening in a work supporting table.

The invention concerns itself more particularly with filing machines of the type wherein the file is reciprocated through an opening provided in the work supporting table and has as one of its objects to provide improved means for rigidly supporting the le at opposite sides of the. table to enable accurately fashioning the work supported on the table.

Another object of this invention is to provide means for adjusting the supporting means to enable accurately positioning the le in various angular positions relative to the supporting table, so that work may be accurately formed to predetermined contours.

Still another feature of this invention is to provide a holder for the portion of the file below the work supporting table constructed to secure the le in various different angular positions with respect to the table and havingadjustable means enclosed in a manner to exclude lings, chips or other foreign matter.

A further object of this invention-is to provide means above the work supporting table for removably supporting the upper end portion of the le and having provision for engaging les of various diierent cross sectional areas.

The foregoing as well as other objects will be made more apparent as this description proceeds, especially when considered in connection with the accompanying drawings, wherein:

Figure l is a side elevational View of a ling machine embodying the features of this invention;

Figure 2 is an end elevational view of the machine shown in Figure 1;

Figure 3 is a fragmentary side elevational view partly in section of the file clamping means provided above the work supporting table;

Figure 4 is a sectional view taken substantially on the plane indicated by the line 4 4 of Figure 3;

Figure 5 is a plan view partly in section of the construction shown in Figure 3;

Figure 6 is a fragmentary plan view` of the tool holder provided below the work supporting table;

Figure 7 is a sectional View taken on the plane indicated by the line 'I I of Figure 6;

Figure 8 is a sectional View taken on the lineI 8 8 of Figure '7 and Figures 9 and l0 are respectively cross sectional views taken on the lines 9 9 and IIl--IIJ of Figure 6.

`Referring now more in detailV to the drawings, it will benoted that the reference character I0 indicates afling `machiner having a base II and having a pedestal I2 extending upwardly from the base. A work supporting table I3 is supported onthe upper end of the pedestal I2 for rocking movement by a pin or bolt I4 having a nut I5 for clamping the table in any one of various` angular positions of adjustment relative to the pedestal I2.

A tool operatingdevice I6 is supported on the base I I beneath the work supporting `table I3 for vertical sliding movement. This device Vis guided throughout its vertical travel by a pair of cylindrical posts I'I supported by the base II.. `In the present instance the device I6 is operated by a drive shaft I8 journalled in any suitable manner on theA base II and having pulleys I9 secured thereto to enable connecting the shaft to a suit-y able prirne mover, not shown. The rotatable drive shaft I8 is operatively connected to thedevice I6 by an eccentric20 and a connecting rod 2|. The eccentric 20 is rotatableas a unit with the shaft VI 8 and is secured to the lower end of the connecting rod by a stud 22. The upper end of the connecting rod is secured to the device I6 iby a stud 23 withthe result that rotation ofthe ec centric Vby the shaft I8` effects a reciprocation ofthe device I6 on-the vertical guides I'I.

The tool to be operated is indicated in Figure 1 of `the drawings by the reference character24, andin the presentinstance, comprises an elongated le. The lowerend of the le 24! is con-` nected to the device I6 by a tool holder 25. The tool holder comprises an arm composed of two sections 2B and 21 secured in juxtapositionto each other by istuds 28. The adjacent .sur-faces ofthe sections 26 and V2I are formed with registering recessesproviding 4an elongated slot 29 throughwhich the tool 24 is adapted to extend.`

Positioned in the slot 29 at the inner side of the tool '24 is a clamping member 30 having an arcuate outer surfaceV 3I and secured in the slot 29 by a stud ,32. As shown particularly in Figure 8 of the drawings, `the stud `32 projects transversely through elongatedslots 33 formed in the sections26 and 2l at opposite sides of the slot 29. The slots 33 are parallel to the slot 29 and per-` mit sliding movement of the clamping member-3l) toward and away from a cooperating `clamping member 34 to clamp the tool therebetween.V The opposite ends of the studu32 are anchoredin the free ends of a yoke 35 which `straddles thesections of the arm and has `the base.V portion V36` Y positioned beyond the outer end of the sectonalarm. The base portion 3B is provided with a boss 31 having a bore therethrough internally threaded for threadably engaging an adjusting screw 38. The inner end of the adjusting screw 38 is adapted to abut the outer end of the sectional arm and cooperates with the latter to move the clamping member 3| toward and away from the clamping member 34 upon rotation of the adjusting screw 38 in opposite directions.

The clamping member 34 is supported in the slot 29 for movement in an arcuate path sub stantially concentric with the arcuate surface 3| on the clamping member 36 and is guided throughout this path by projections 45 extending outwardly from diametrically opposite sides into recesses respectively formed in opposite walls of the slot 29. The outer face 4| of the clamping member 34 has a radius of curvature which corresponds to the arcuate path of travel of the clamping member, andis formed with teeth 42 which mesh with a worm 43. It is pointed out at this time that the teeth 42 terminate short of the upper end of the member 34, and that the upper portion of the surface 4|! has a sliding contact with the adjacent wall 44 of the slot 29. As a result, the worm 43 and intermeshing teeth 42 on the clamping member 34 are sealed against entrance of chips, filings or other foreign matter.

The worm 43 is formed on a shaft 45 having the upper end journalled in a bore formed by 5,.:

registering recesses in the adjacent surfaces of the sections 26 and 21. The lower end of the shaft 45 is journalled in a bearing 45 formed on a plate 41 which is secured to the underside oi' the sectional arm by a stud 48. The purpose of this plate is to provide an ample support for the lower end of the worm shaft in the assembled position of the parts. The worm shaft is rotated to adjust the clamping member 34 along its arcuate path of travel by a knob 49 secured to the lower end of the worm shaft 45. The above arrangement is such that the holder 25 not only serves to eiectively clamp the tool 24 to the device I6, but also permits varying the angular position of the tool 24 relative to the work supporting table I3.

The work supporting table |3 is formed with an opening 50 therethrough and the upper end of the tool 24 is adapted to project through the opening 5|), so that it may be engaged by the Work supported on the table. In the present instance, the upper end of the tool 24 is secured to an arm 5| by a clamp 52. The arm 5| is connected to the upperend of a post 53 having the lower end secured to the devise l5 for movement f,

as a unit with the latter. The eonnnection between Vthe post 53 and arm 5| comprises a releasable latch 54 and a pivot 55. This construction is shown in my Patent No. 1,361,074 dated December 7, 1920, and need not be described in detail herein. It will suice to point out that the above connection enables the arm 5| to be readily swung to an inoperative position at one side of the work supporting table when desired.

The clamp 52 comprises cooperating parts 53 and 51. The part 56 has a portion 58 which forms a segment of a circle and has a cylindrical portion 59 which slidably engages in a bore 55 formed in the outer end of the arm 5|. The part 51 corresponds in curvature to the portion 58 and slidably engages the latter. As shown particularly in Figure 5 of the drawings, the lower end of the portion 58 is formed with a slot 5| having a V-shaped base portion 62, and the corresponding end of the part 51 is formed with a slot 63 having a V-shaped outer wall 64. The slot 53 in the part 51 is registerable with the slot 6| in the part 56, and the V-shaped walls of the slots cooperate to clamp the upper end of the tool 24. It will also be noted that the V-shaped walls of the slots are eiective to clamp tools of various different cross sectional contours, and that the size of the tool may be compensated for by adjusting the part 51 relative to the part 56. In the present instance, this adjustment is rendered poss.ble by clamping the parts together with a stud 65 having the lower end secured to the portion 58 and having the upper end projecting through an arcuate slot 66 in the part 51. A thumb'screw 51 is threaded on the upper end ofthe stud, and is adapted to engage the adjacent side of the part 51 to clamp the latter against thev portion 58 of the part 56.

Itl is also desirable to adjust the clamp 52 fore and aft relative to the arm 5| rlhis is accomplished by providing an adjusting screw 58 and by forming a recess 69 in the cylindrical portion 59 of the part 55 for receiving the inner end portion of the adjusting screw. The outer end portion of the adjusting screw is rotatably supported in the bore formed in the part and a control wheel 15 is secured to the adjusting screw for rotating the latter. rIhe adjusting screw 58 threadably engages a nut 1| supported in the recess 59 against rotation, and having a shank 12 projecting upwardly through a -boss 13 on the arm and secured to a screw 14. The screw 14 is threaded in the boss 13 and serves to tension the screw 58 to hold the latter in any one of its various adjusted positions. Thus, it will be noted that the clamp 52 may not only be adjusted to accommodate tools of different cross sectional areas and of different sizes, but may also be adjusted to compensate for diierent angular positions of the tool relative to the table.

What I claim as my invention is:

1. A ling machine comprising a tool holder having cooperating clamping members engageable with opposite sides of a tool to clamp the same to the holder, one of the members having an arcuate face engageable with one side of the tool to permit rocking movement of the tool relative to the holder, means supporting the other of said members for sliding movement along a path curved in such relation to the arcuate face on said one member to rock said tool about the arcuate face upon sliding movement of the said one member, and means connected to said one member for sliding the same along said arcuate path.

2. A filing machine comprising a tool holder having cooperating clamping members relatively movable toward and away from each other, means for moving one member in a direction toward the other to clamp a tool therebetween, said one member having an arcuate face engageable with one side of the tool, means supporting the other member for sliding movement along an arcuate path for rocking the tool about the arcuate face on said one member, and means for moving the said other member along said arcuate path while the tool is clamped between said members.

3. A ling machine comprising a tool holder having a slot through which a tool is adapted to extend and having members in said slot for engaging opposite sides of the tool, one of said members having an arcuate tool engaging face permittingA rocking movement of the tool in a `plane including the tool, means supporting the other member for movement in said plane along 'an arcuate path generally concentric with the l'arcuate tool engaging face on the said one member, and means for moving the said other member along the arcuate path aforesaid to angularly adjust the position of the tool relative to the holder.

1. A 'lling machine comprising a tool holder having cooperating clamping members relatively movable toward and away from each other, means for moving one member in a direction toward the otherI to clamp a tool therebetween, said one member having an arcuate face engageable with one side of the tool, means supporting the other member for movement along an arcuate path for rocking the tool about the arcuate face on said one member, and means for moving the said other member along said arcuate path including a worm meshing with teeth on said other member.

5. A ling machine comprising a tool holder having cooperating clamping members relatively movable toward and away from each other, means for moving one member in a direction toward the other to clamp a tool therebetween, said one member having an arcuate face engageable GUs'rAv KOINEK.

REFERENCES CITED The following references are of record in the le of this patent:

UNITED STATES PATENTS Number Name Date 888,651 Peterson May 26, 1908 950,792 Korinek 1 Mar. 1, 1910 1,369,138 Skinner Feb. 22, 1921 1,395,381 Biddle Nov. 1, 1921 1,412,915 Boker Apr. 18, 1922 1,636,729 Yarrington July 26, 1927 2,327,843 Jesionowski Aug. 24, 1943 

